Difference between revisions of "Asphalt Shingles - Valley Intersection with Ridge"

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Difference between revisions of "Asphalt Shingles - Valley Intersection with Ridge"

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<big><big>Division D - Construction Details</big></big>
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<big><big><big><big><big>Asphalt Shingles | Valley Intersection with Ridge ([[Asphalt_Shingle_Systems_Standard#10.3.5.9. Valley Intersection with Ridge | Article 10.3.5.9.]])</big></big></big></big></big>
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<div class="panel-heading"><big>'''Asphalt Shingle Details'''</big></div>
 
<div class="panel-heading"><big>'''Asphalt Shingle Details'''</big></div>
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<big>Applicable to slopes 1:6 (2" in 12") and greater.</big>
 
  
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| [[File:ASh 10.5.1-1 CD.jpg | class=img-responsive | link=http://rpm.rcabc.org/images/e/ef/ASh_10.5.1-1_CD.jpg]] || [[File:ASh 10.5.1-2 CD.jpg | class=img-responsive | link=http://rpm.rcabc.org/images/f/fe/ASh_10.5.1-2_CD.jpg]]
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| [[File:ASh 10.5.1-3 CD.jpg | class=img-responsive | link=http://rpm.rcabc.org/images/e/ed/ASh_10.5.1-3_CD.jpg]] || [[File:ASh 10.5.1-4 CD.jpg|class=img-responsive | link=http://rpm.rcabc.org/images/b/b5/ASh_10.5.1-4_CD.jpg]]
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=== WORK INCLUDED ===
 
=== WORK INCLUDED ===
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;(1) [[RoofStar Guarantee Standards for Asphalt Shingles Roof Assemblies#LSUNDERLAYMENT|'''Underlayment & Eave Protection''']]: One ply of self-adhered modified bituminous underlayment material. Lap 50 mm (2") minimum on sides and 150 mm (6") minimum on ends. Also refer to the [[Eave Protection & Underlayment (Asphalt Shingles, Cedar Shakes & Shingles)|'''Accepted Materials''']] section of this Manual.
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;(1) [[Asphalt Shingle Systems Standard#AShVALLEYMEMBRANE|'''Valley Protection Membrane''']]: Applied beneath the metal valley flashing.
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;(2) '''Edge Metal Flashing''': Optional (cf. [[RoofStar Guarantee Standards for Asphalt Shingles Roof Assemblies#LSEDGE|'''2.2.9 Wood Deck Overlay Sheathing (Non-Structural)''']] for specific requirements), installed to manufacturer's printed instructions.
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;(2) [[Asphalt Shingle Systems Standard#AShVALLEYMETAL|'''Valley Metal Flashing''']]: Required for open valleys.
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;(3) [[RoofStar Guarantee Standards for Asphalt Shingles Roof Assemblies#LSSTARTER|'''Starter Course''']]: Consists of same type shingles used for roof, applied tabs facing up the slope.
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;(3) [[Asphalt Shingle Systems Standard#AShUNDERLAYMENT|'''Underlayment''']]: Required, and installed to overlap the Valley Protection Membrane and the Valley Metal Flashing.  Install ‘shingle-style’, following the requirements for side and end laps; use acceptable fasteners, or adhere (if a self-adhering membrane) in keeping with the manufacturer’s published requirements.
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;(4) '''Strip or Standard Shingles''': Applied as recommended by manufacturer. Laminated shingles are <u>not</u> acceptable for this application.
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;(4) [[Asphalt Shingle Systems Standard#AShVALLEYTRANSITION|'''Lower Membrane Patch''']]: Required to cover the joint where the ridgeline of one roof joins the sloped plane of another.  Cut as illustrated and apply to the slope; the patch must be cut large enough to extend upslope at least 150 mm (6”), but must not exceed the exposure of the ridge cap shingles.
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;(5) '''Compatible Mastic''': Heavy bead of compatible asphaltic mastic at rakes (gables) and valleys.
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;(5) [[Asphalt Shingle Systems Standard#AShVALLEYTRANSITION|'''Upper Membrane Patch''']]: Required to overlap the Lower Membrane Patch, ‘shingle-style’, by at least 50 mm (2”). Extend the patch upslope past the Metal Valley Flashing at least 150 mm (6”).
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;(6) [[RoofStar Guarantee Standards for Asphalt Shingles Roof Assemblies#ASPROTRUSIONS|'''Protrusions''']]: Curbs and skylights must be flashed with underlayment so as to shed water, with minimum 125mm (5") up vertical surfaces and 150 mm (6") lapping onto field surfaces. Vent stack underlayment flashing should fit tight to the vent pipe and be sealed with compatible mastic. For fire-rated stacks or hot pipe protrusions, strip in secondary metal deck flashing before installing rated stack / pipe flashing.
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;(6) [[Asphalt Shingle Systems Standard#AShPART9GEN-APPLICATION|'''Shingles (field)''']]:
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;(7) [[RoofStar Guarantee Standards for Asphalt Shingles Roof Assemblies#ASNAILING|'''Nailing''']]: Note manufacturer's recommended nailing pattern. Placement varies with manufacturer.
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;(7) [[Asphalt Shingle Systems Standard#AShRIDGE|'''Shingle Ridge Cap''']]:
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;(8) [[Asphalt Shingle Systems Standard#AShVALLEYTRANSITION|'''Split Ridge Cap Shingle Transition''']]: Required to tie the ridge caps into the adjacent roof field shingles.
  
 
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=== RELATED WORK BY OTHERS ===
 
=== RELATED WORK BY OTHERS ===
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;(A) [[RoofStar Guarantee Standards for Asphalt Shingles Roof Assemblies#ASDECK|'''Acceptable Deck''']]
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;(A) [[Asphalt Shingle Systems Standard#AShDECKS|'''Acceptable Deck''']]
 
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'''NOTE''': Refer to '''''RoofStar Guarantee Standards''''' for additional requirements.
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'''NOTE''': See the [[Asphalt Shingle Systems Standard | '''Standard''']] for additional requirements.
  
 
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Latest revision as of 14:27, 30 June 2022



Division D - Construction Details

Asphalt Shingles | Valley Intersection with Ridge ( Article 10.3.5.9.)

Notice to Reader
Images used in a Construction Detail are representative and not prescriptive, and are not necessarily drawn to scale. They are intended to support the related Standard (Ref. Division A, Article 2.2.1.2.).

The reader may link to the related Article in the detail title, or link to the Standard as it relates to a specific element in the detail. All hyperlinks are displayed blue text.

Asphalt Shingle Details
Click on any image to expand it
ASh 10.5.1-1 CD.jpg ASh 10.5.1-2 CD.jpg
ASh 10.5.1-3 CD.jpg ASh 10.5.1-4 CD.jpg

1 WORK INCLUDED

(1) Valley Protection Membrane
Applied beneath the metal valley flashing.
(2) Valley Metal Flashing
Required for open valleys.
(3) Underlayment
Required, and installed to overlap the Valley Protection Membrane and the Valley Metal Flashing. Install ‘shingle-style’, following the requirements for side and end laps; use acceptable fasteners, or adhere (if a self-adhering membrane) in keeping with the manufacturer’s published requirements.
(4) Lower Membrane Patch
Required to cover the joint where the ridgeline of one roof joins the sloped plane of another. Cut as illustrated and apply to the slope; the patch must be cut large enough to extend upslope at least 150 mm (6”), but must not exceed the exposure of the ridge cap shingles.
(5) Upper Membrane Patch
Required to overlap the Lower Membrane Patch, ‘shingle-style’, by at least 50 mm (2”). Extend the patch upslope past the Metal Valley Flashing at least 150 mm (6”).
(6) Shingles (field)
(7) Shingle Ridge Cap
(8) Split Ridge Cap Shingle Transition
Required to tie the ridge caps into the adjacent roof field shingles.

2 RELATED WORK BY OTHERS

(A) Acceptable Deck

NOTE: See the Standard for additional requirements.

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